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(11)

EP 0 835 503 A2

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(43) Date of publication: 15.04.1998 Bulletin 1998/16 (21) Application number: 97906846.0 (22) Date of filing: 06.03.1997

(51) International Patent Classification (IPC):  G09G 3/ 36( . ) G09G 3/ 20( . ) (86) International application number: PCT/JP1997/000704 (87) International publication number: WO 1997/035225 (25.09.1997 Gazette 1997/41)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 07.03.1996 JP 19960050578 (71) Applicants: ASAHI GLASS COMPANY LTD. Chiyoda-ku Tokyo 100 (JP) Optrex Corporation Tokyo 113 (JP)

(72) Inventors: NAGAI, Makoto Asahi Glass Company Ltd. Kanagawa-ku, Yokohama-shi Kanagawa 221 (JP) KUWATA, Takeshi Asahi Glass Company Ltd. Kanagawa-ku, Yokohama-shi Kanagawa 221 (JP) OZEKI, Masao Asahi Glass Company Ltd. Kanagawa-ku, Yokohama-shi Kanagawa 221 (JP) (74) Representative: Perrey, Ralf, Dr. Dipl.-Chem., et al  Müller-Boré & Partner, Grafinger Strasse 2 81671 München 81671 München (DE)